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What is the main idea of this passage?
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- 3. Which is NOT a reason we should eat insects
1. What is the main idea of this passage?
A) Insects can cause many problems. B) People need more protein in their diet. C) Insects could be the cure to world hunger. D) Greenhouse gases are polluting the environment. 2. Which insect do people in Ghana eat to get protein? A) crickets B) termites C) cicadas D) ants 3. Which is NOT a reason we should eat insects? A) decreasing fish populations B) increasing insect populations C) the earth’s increasing human population D) decreasing land for farming and raising animals 4. What can be inferred from this passage? A) Insects are rich in only protein. B) World hunger will become serious. C) Insects are often eaten in North America. D) Animals don’t contain protein and nutrients. 5. Which can replace the word “contain” in line 19? A) have B) take C) consume D) continue 80. HOW MOUNTAINS ARE FORMED Are there any mountains near your home? Aren’t they enormous? Have you ever wondered what made these big mountains? Mountains are formed as a result of the earth’s activities, and all mountains take millions of years to be made. Mountains are usually formed when the earth’s plates crash together. These mountains are called “fold mountains.” The plates crash together with so much energy that they are forced up. This is the way the Himalayas, the world’s highest mountain range, began to form 25 million years ago. In fact, these mountains are still growing, as the plates continue to push against each other. Mountains can also be formed along fault lines. We call these mountains “block mountains.” Fault lines are cracks in the earth’s crust. These cracks force blocks of rock upward or downward; the uplifted blocks become block mountains. The Harz Mountains in Germany were formed in this way. Magma under the earth’s surface can form mountains as well. Magma is molten rock. It’s liquid, so it flows through cracks. When the magma finds its way to the surface, it erupts explosively as lava, rock, ash and volcanic gas. As the lava cools and hardens, a “volcanic mountain” is created. One example of this kind of mountain is Mt. Halla on Jeju-do, a Korean island. No matter how they were formed, mountains are natural wonders for us to enjoy. They provide beautiful scenery and can be hiked for fun. The next time you see a mountain, try to figure out how it was formed. Download 0.68 Mb. Do'stlaringiz bilan baham: |
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